/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package net.hnilica.cisteniulic.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.hnilica.cisteniulic.dao.InfoDAO;
import net.hnilica.cisteniulic.dto.Info;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;

/**
 *
 * @author swosh
 */
public class DeleteUlice extends HttpServlet {

    private static final String urlOk = "/CisteniUlic/sprava/index.jspx?akce=sprava";
    private static final String urlFail = "/sprava/index.jspx?akce=sprava";
    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("application/xhtml+xml;charset=UTF-8");
        request.setCharacterEncoding("UTF-8");
        String deleteUlice = request.getParameter("delete_ulice");
        String anchorS = request.getParameter("anchor").replace("anchor", "");
        int anchor = Integer.parseInt(anchorS);
        String urlAnchor;
        anchor--;
        if (anchor < 0) {
            urlAnchor = urlOk;
        } else {
            urlAnchor = urlOk + "#anchor" + anchor;
        }
        Subject subject = SecurityUtils.getSubject();
        //principal is sam as an email in database
        String email = (String) subject.getPrincipal();
        Info info = new Info(email, deleteUlice);
        InfoDAO infoDAO = new InfoDAO();
        boolean ok = infoDAO.deleteInfo(info);

        if (!ok) {
            RequestDispatcher dispatcher = request.getRequestDispatcher(urlFail);
            request.setAttribute("chyba", "Ulici " + deleteUlice + " se nepovedlo smazat.");
            dispatcher.forward(request, response);
        } else {
        response.sendRedirect(urlAnchor);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
